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<HTML><HEAD><TITLE>How much tuning pin in pinblock?</TITLE>
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<DIV><FONT size=3>I don't claim to have any real expertise to answer this
question - more opinion and more questions.</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>It seems to me that one would always be better off with more
pin in more pinblock - how/why would it be any other way? The more length of pin
in the block will only make the pin more stable - less likely to enlarge the top
of the hole toward the string. The more pin/block contact, the less friction per
contact unit would be needed for any given pin torque - meaning more stability
and longevity. Just seems to me that more/more could only be
win/win.</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Paul - what is your reasoning for leaving any empty tuning pin
hole on the underside of the pinblock - and then especially, what is your
reasoning for relating that distance to coil height? How is one
dependant/affecting the other?</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Terry Farrell</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV>Correct me if I'm wrong, but I've always aimed for a tuning pin/block
relationship that, irrespective of the actual measures, ends up with the
same dimension between the coil/plate as there is at the bottom of
the pinhole in the block. In other words, if the coil height is, for
example, 3/16", then there should be approximately 3/16" available
between the bottom of the pin and the bottom of the pin hole/bottom of
the pin block. The other dimensions then sort themselves out if one chooses
the right pin size and block thickness. Does that make sense? It almost always
works out to approximately what you calculated: between 1" and 1 1/8" of pin
in the hole. </DIV>
<DIV> </DIV>
<DIV>Paul</DIV>
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<DIV>
<DIV>><FONT face=Arial color=#000000>How much of pin should ideally be in
block?</FONT></DIV>
<DIV><BR></DIV>
<DIV>As my grandmother used to say to my relatives when divulging
ingredients</DIV>
<DIV>for recipes for her fantastic pies: Enough but not too much.</DIV>
<DIV><BR></DIV>
<DIV>Generally speaking, The top of the pin usually is anywhere from 7/8" to
1"</DIV>
<DIV>above the plate. Allowing for a 3/8" thickness of plate at tuning pin
field,</DIV>
<DIV>with a 2 3/8" pin, that leaves 1" and 1 1/8" into the block
respectively.</DIV>
<DIV><BR></DIV>
<DIV>Subtract from that the 3/16" bevel at the bottom of the pin,
leaving...</DIV>
<DIV>um... er... why can't we use metric? :-) ... Enough
but not too much...</DIV>
<DIV><BR></DIV>
<DIV>A lot depends on the block material and bore diameter/drill
speed.<BR><BR>Jon Page</DIV></DIV></BLOCKQUOTE>
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